Well, animals act to survive and breed, that's basically it. Whatever supports that, they prefer and are iterested in (if you like to use those terms).
Try as you might to diminish those interests, they're still present. We can say, "well, the reason humans enjoy *********** is because its evolution's way of inducing us to have children." Yeah, so?
I was actually referring to exactly this type of situation. If a late fetus was a human being, it simply could not be killed to try to save the mother's life. Likewise, you cannot just kill an innocent man (say, remove his heart) to save another man's life.
We knowingly kill innocent humans en masse with the vague promise that it will prevent future deaths. More to the point, we deny fully developed (but incapacitated) humans their life support. When it comes to removing a heart, or using any innocent person as a means to an end, then we're dealing with one of the most basic moral problems. It generally makes sense to have laws prohibiting this behavior (even on utilitarian grounds), but as discussed above circumstances and morality may dictate victimizing innocents/law-breaking.
---------------------------
Cyborg:
And how exactly do you know what their interests are?
My awesome powers of observation, which tell me dogs, for example, prefer to be scratched on the head rather than kicked in the ribs. While some dogs may not like their noggin rubbed, I'd wager fewer still enjoy getting kicked in the side.
But hey, I'm claiming privileged access to special information. People who keep pets have no idea what they're doing.
I wish, but consumer behavior indicates otherwise.
Yes, and part of that ability to make moral decisions says that eating animals isn't wrong. You agree with this.
Yes, and people believe virgins could give birth, dead people can come back to life, and bread falls from heaven. A rational capacity does not always insure its use (
cf.
http://www.internationalskeptics.com/forums/search.php?searchid=404150).
Everything else is a matter of resource management yet I see very little talk of this. Maybe that is just too pragmatic for you...
Quite the contrary, but this is not the first time, or regrettably the last, you dare to speak on matters of which you know so little. Some people come to veganism via environmental concerns, specifically how inefficient it is to produce meat (~12+ pounds of grain to generate a single pound of beef, unconscionable waste of water, cow farts, pig ****, health-care costs, land use). I have posts up about it, discussed the issue many times with people who are sharper than you.
Re: animal rights
No, it's pretty simple; the concept is stupid. It's stupid enough for people, extending it to animals that don't and can't have any concept of human social constructs is just ridiculous.
So it's stupid to extend rights to toddlers?